Friday, January 31, 2020
Brazils Communication Essay Every country has unique, distinctive ways in which they interrelate and communicate with each other within their country. A countryÃ¢â¬â¢s means of communication can be verbalized through verbal, non-verbal, and interpersonal communication channels. In the country of Brazil most people are not Hispanic but Latino, although many immigrant communities are from Europe, Africa, and Japan. The official language spoken in Brazil is Portuguese; however, Spanish, English, and French are other languages that are also spoken in Brazil. When greeting they expect a firm handshake with strong eye contact. When doing business in Brazil dont be taken aback if they stand very close to you when speaking. Moving away may be interpreted as rejection. Brazil also uses many forms of non verbal communication. Much of this body language is comprised of culturally derived behaviors. When speaking to one another, it is not normal to take turns speaking. People will interrupt a conversation and will often speak at the same time as their peers. Another verbal communication pattern that Brazil practices is using first names when addressing a person. Also, oneÃ¢â¬â¢s tone of voice is often high pitched when conversing with one another. Although daily conversation is conducted in a louder voice, it is not meant to express anger or hostility to anybody. In addition, verbal communication in Brazil is viewed as being theatrical and overly animated by other countries who are more reserved. In Brazil, physical appearance and surroundings are important and provide visual cues as to oneÃ¢â¬â¢s status and tone of conversations. In many Latin countries, communication tends to be predominately oral rather than through written word. However, from the business aspect, when sending something in written format it is usually a good idea to follow up with a phone call or a visit in person. Over the last two decades, the telecom industry world over has grown and evolved at an incredible pace and has significantly changed the way people interact. Brazil Telecom offers long distance telecommunications services hrough some 8,034 million lines and 281,800 public telephones to customers in Brazil. Oi Telecom, formerly known as Telemar is the largest telecommunications company in Brazil, it was established in 2008 and has become the biggest company in Brazil on the Telecommunications sector. This company is present in 4600 cities in Brazil and it has influenced the price drop in the national level of the same services offered by competitors due to strength of its operations in the country.
Thursday, January 23, 2020
Reverse Discrimination and Affirmative Action Discrimination in employment has been an issue that has plagued our society throughout history. At the turn of this century it was acceptable to advertise job openings and specifically state that people of a certain race, color, religion, gender, or national origin "need not apply". A lot has changed over the last 100 years. The proverbial "pendulum" has swung in the direction of federal protection of certain people, but the problem now is that it has swung too far. Title VII of the 1964 Civil Rights Act states that it is unlawful for an employer "to fail or refuse to hire or to discharge any individual, or otherwise to discriminate against any individual with respect to his compensation, terms, conditions, or privileges of employment, because of such individual's race, color, religion, sex, or national originÃ¢â¬ ¦" 42 U.S.C. 2000e-2(a)(1). This law was enacted in an effort to set right the wrongs of the past and instill equity in the workplace; yet a new set of wrongs and social injustices have been created. This newly created set of wrongs and injustices are referred to as reverse discrimination. Reverse discrimination is discrimination against a majority class, and is ever increasing in public-sector employment. Social Equity and Affirmative Action Affirmative action was instituted to redress the social inequities of past discrimination in employment against what became known as a 'protected class' (women and minorities). The goals of affirmative action plans are to increase the representation of historically disadvantaged people in the workplace equal to their representation in the corresponding community and relevant labor market. This formula is how affirmati... ...regardless of skin color or gender, feel the same effects: a brick wall placed between them and their constitutional right of prosperity and equality. Over the last hundred years our societal values (in employment) have swung from an anything goes mentality to the other end of the spectrum, the era of "political correctness" where you are damned if you do and damned if you don't. Uncertainty prevails. It is apparent, though, that the proverbial "pendulum" is in an evening-out process and trying to find middle ground. Discrimination is discrimination regardless of what type of form it takes. There is truly only one kind if discrimination and that is where an individual's rights are infringed upon due to traits in which they have no power to control. Each and every one of us deserves to have the right to freedom and equality given to us by our forefather's.
Wednesday, January 15, 2020
The basic principles of Osmosis and Diffusion were tested and examined in this lab. We examined the percent increase of mass and molarity of different concentrations of sucrose in the dialysis bag emerged in distilled water and the potato cores emerged in concentrations of sucrose. The data reinforces the principles of Osmosis and Diffusion, and in a biological context, we can simulate how water and particles move in and out of our own cells. Introduction Objective: 1. Investigate the process of osmosis and diffusion in a model of a membrane system. 2. Investigate the effect of solute concentration on water potential as it relates to living plant tissue. Background Information: Molecules are in constant motion; they tend to move from areas of high concentration, to areas of low concentration. This broad principle is divided into two categories: diffusion and osmosis. Diffusion is the random movement of molecules from an area of higher concentration to an area of lower concentration. This is considered a passive form of transportation because it does not require any additional energy to transport the molecules. In the body, carbon dioxide and oxygen can diffuse across cell membranes. Osmosis is a special type of diffusion where water moves through a selectively permeable membrane from a region of higher water potential to a region of lower water potential. In our body, water diffuses across cell membranes through osmosis. Water potential is the measure of free energy of water in a solution and is shown with the use of the symbol Ã ¨. Water potential is affected by two factors: osmotic potential (Ã ¨Ãâ¬) and pressure potential (Ã ¨p). Osmotic potential is dependent on the solute concentration, and pressure potential which is the energy that forms from exertion of pressure either positive or negative on a solution. The equation to find the sum of water potential is: Water Potential = Pressure Potential + Osmotic Potential Ã ¨w = Ã ¨p + Ã ¨Ãâ¬ The purpose of this lab is to observe the physical effects of osmosis and diffusion and to determine if it actually takes place. We hypothesize that, because molecules diffuse down a concentration gradient, the mass of the dialysis tubes will increase, and we believe that as the molarity increases, the percent of change in mass will also increase. Hypothesis: Diffusion and osmosis will occur until dynamic equilibrium is reached. As the sucrose concentration of the solution increases so will the mass. Materials Exercise 1: 1. 6 strips of dialysis tubing 2. Distilled water 15-20ml 3. 0.4 M sucrose 15-20ml 4. 0.8 M sucrose 15-20ml 5. 0.2 M sucrose 15-20ml 6. 0.6 M sucrose 15-20ml 7. 1.0 M sucrose 15-20ml 8. 6 Beakers Exercise 2: 1. 100ml of distilled water 2. 100ml of 0.4 M sucrose 3. 100ml of 0.8 M sucrose 4. 100ml of 0.2 M sucrose 5. 100ml of 0.6 M sucrose 6. 100ml of 1.0 M sucrose 7. 6 Beakers 8. Potato slices (4 for each solution) 9. Scale 10. Plastic wrap 11. Thermometer Methods Exercise 1: 1. Obtain 6 strips of dialysis tubing and tie a knot in one end of each. 2. Pour approximately 15-20ml of each of the following solutions into separate bags. 3. Remove most of the air from the bag and tie the baggie. 4. Rinse the baggie carefully in distilled water to remove any sucrose that may have spilled and carefully blot. 5. Record the mass of each baggie and record. 6. Fill six 250ml beakers 2/3 full with distilled water and place a bag in each of them. Make sure that you record which baggie is which. 7. Let the bag sit for 20-30 minutes. 8. After 20-30 minutes, remove baggies from the water, and carefully blot dry. 9. Measure the mass of each baggie and record. Exercise 2: 1. Pour 100ml of your assigned solution into a beaker. Slice a potato into 4 equal lengths about the shape of French fries or tubes. 2. Determine the mass of the 4 potato cylinders together and record. 3. Place the cylinders into the beaker with your assigned solutions and cover with plastic wrap. Leave overnight. 4. Remove the cylinders from the beakers and carefully dry them. Record the room temperature in Celsius. 5. Determine the mass of the 4 potato cylinders together and record. From these results, it can be concluded that the hypothesis is justified and correct. The data shows that the mass increased as the concentration of the sucrose solution increased. Osmosis is clearly being replicated in the physical form. Analysis Change in mass depends on the concentration of sucrose within the dialysis bags. If the concentration of sucrose is greater inside the bag than outside, then water will move into the bag. If the concentration of sucrose is lower inside the bag than outside, then water will move out of the bag. These two things are directly proportional. As the mass increases, so does the molarity. These are inversely proportional because whenever the sucrose molarity inside the bag is more concentrated, it will become more dilute and vise versa. The solutions will reach equilibrium somewhere between the two concentrations. The hypothesis is accepted based on the data that was obtained because as the sucrose concentration increased so did the final mass of the solutions. One possible source of error could be the tightness of the string that tied off the dialysis tubing. If there was a leak or a break in the dialysis tubing, all of the data would be off. Another possible source of error could be that the students did not pat dry the potato sample well enough causing drops to be left on the electronic balance, tarring it incorrectly, causing all other data to be off slightly. Simple mathematical errors always occur, so there is always room for simple algebraic mistakes in this section of the lab. Conclusion The purpose of this lab was to describe the physical mechanism of osmosis and diffusion and describe how molar concentration affects diffusion. We haveÃ now observed how solutions diffuse in different situations, always from a high concentration to a low concentration, and how molar concentration affect diffusion, as the molarity goes up, more solution is diffused. We hypothesized that because molecules diffuse down a concentration gradient, the mass of the dialysis tubes will increase, and also that as the molarity increases, the percent of change in mass will also increase. Our data did support our conclusion. Exercise 1 proved that water moves across the selectively permeable membrane of the dialysis tubing much easier than sucrose sugar does. The water moved to reach equilibrium between the solutions. Sucrose must be too large a molecule to pass through the membrane quickly. Exercise 2 showed that the potato samples took in water when immersed in a distilled water solution. Potatoes must contain sucrose molecules due to the conclusion of this lab because the potatoes take in water in the distilled water beaker. Potatoes had a lower water potential and higher solute potential than the distilled water. It is just the opposite inside the beaker. Works Cited Ã¢â¬Å"PHSchool Ã¢â¬â The Biology Place.Ã¢â¬ Prentice Hall Bridge Page. Pearson Education, June 2007. Web. 12 Sept.2011. Moulton, Glen E. Ã¢â¬Å"Cell Theory, Form, and Function: Fluid Mosaic Model of Membrane Structure and Function Ã¢â¬â Infoplease.com.Ã¢â¬ Infoplease: Encyclopedia, Almanac, Atlas, Biographies, Dictionary, Thesaurus. Free Online Reference, Research & Homework Help. Ã¢â¬â Infoplease.com. Web. 14 Sept. 2011. < http://www.infoplease.com/cig/biology/fluid-mosaic Bowen, R. (2000, July 2). Osmosis. Retrieved February 14, 2009, from http://www.vivo.colostate.edu/hbooks/cmb/cells/pmemb/osmosis.html Sheppard, T. (2004). Diffusion and Osmosis. Retrieved February 14, 2009, from http://www.blobs.org/science/article.php?article=20 Campbell, N. A., & Reece, J. B. (2005). Biology (7th ed.). New York: Pearson Education Inc.
Monday, January 6, 2020
Deforestation has caused many huge impacts on the environment and we should cease the logging and burning being done to it. Forests account for most of our global changes that have been happening recently, since they act as the lungs of the earth. The great loss of them has caused there to be a steadily growing amount of carbon dioxide as well as other greenhouse gases. Ã¢â¬Å"Deforestation has such a massive effect on climate change that Indonesia and Brazil are now the third and fourth largest emitters of carbon dioxide on the planet.Ã¢â¬ When rainforests are logged or burnt, large amounts of carbon dioxide are spread into the atmosphere, adding to global warming. Most people donÃ¢â¬â¢t even know that rainforests are being harvested as quickly asÃ¢â¬ ¦show more contentÃ¢â¬ ¦Ã¢â¬Å"Brazil and Indonesia, which contain the worldÃ¢â¬â¢s two largest surviving regions of rainforest, are being stripped at an alarming rate by logging, fires, and land-clearing for agriculture and cattle-grazing.Ã¢â¬ Logging the rainforests for a cheaper non-domestic source of beef for food chains such as McDonalds is not fair for the wildlife that now has to relocate to somewhere else in the rainforest, and some of the older or weaker animals burn in the fires when they burn some parts of the rainforest. Along with the loss of rainforests comes climate changes for those regions as well as a global difference in air temperature, ocean streams, air currents and the water table, which is either triggered to overflow or dry out due to how the rainforest used to support the water table. Soil that once held roots can now erode away, since the ground becomes less stabile, and on hills can become mudslides. The soil also loses some of its nutrients with the loss of trees and indigenous plants. The symbiotic relationship between the plants, animals and soil quality are directly related and with the logging, burning and harvesting of wood the native species have to relocate to other parts, leaving the otherwise rich soil toShow MoreRelatedDeforestation Essay1071 Words Ã |Ã 5 PagesIs Deforestation Worth It? One of the most prevalent issues in our world today is the issue of deforestation. Deforestation can be described as Ã¢â¬Å"the practice of clearing the natural forests for agriculture, logging, etc.Ã¢â¬ (Deforestation Statistics). After hearing the definition of deforestation, most people would not find this to be a very significant issue in the world, but after hearing the alarming statistics associated with deforestation, most would change their mind. 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